Case study:Sheephouse Wood Mine Water Treatment Scheme

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Location: 53° 29' 53.54" N, 1° 39' 10.73" W

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Project overview

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Status	Complete
Project web site
Themes	Environmental flows and water resources, Fisheries, Habitat and biodiversity, Social benefits, Water quality
Country	England
Main contact forename	Sinead
Main contact surname	Chamberlain
Main contact user ID	User:Coal Authority
Contact organisation	The Coal Authority (UK)
Contact organisation web site	http://coal.decc.gov.uk
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

Sheephouse Wood mine water treatment scheme

Project summary

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Sheephouse Wood mine water treatment scheme addresses a long-standing coal mine water pollution problem associated with the Sheephouse Wood adit, in South Yorkshire, England.

The mine water treatment scheme is built on the site of the former Hand Bank Colliery, which closed in the 1930s. Fireclay was also previously mined on the site. The original discharge was via a drainage adit running under the site located at a depth of 30 metres. This adit discharged into a drainage channel, which extends for approximately 2km bypassing the Underbank Reservoir. In February 2002, a sudden outrush of contaminated mine water occurred which damaged a section of the major trunk road between Sheffield and Manchester (A616). This was caused by a collapse in the adit, leading to water pressure building up in the workings. Remedial works were carried out on the adit and to repair the road but in 2005 another blockage in the adit led to water levels rising. This resulted in the majority of the flow emerging from a second discharge located a short distance to the north. Flow from this discharge affected a stretch of the Little Don River.

The Coal Authority stepped in to construct a scheme to treat the mine water and control water levels and pressure, in order to prevent significant outbreaks of pollution which had occurred at this site in the past. The scheme comprises of two lagoons and a reed bed to remove iron from the water prior to it being discharged into the local watercourse.

Monitoring surveys and results

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This scheme has significantly improved the water over 2.4km.

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Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Humber River basin Don and Rother Subcatchment River name Little Don from Source to River Don Area category 10 - 100 km² Area (km2) Maximum altitude category 500 - 1000 m Maximum altitude (m) 539539 m <br />0.539 km <br />53,900 cm <br /> Dominant geology Siliceous Ecoregion Great Britain Dominant land cover Bog Waterbody ID GB104027057460 Other case studies in this subcatchment: Little Don Catchment Case Study Site Edit site Name WFD water body codes GB104027057460 WFD (national) typology WFD water body name Little Don from Source to River Don Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body No National/international site designation Local/regional site designations Protected species present No Invasive species present No Species of interest Dominant hydrology Dominant substrate River corridor land use Average bankfull channel width category Average bankfull channel width (m) Average bankfull channel depth category Average bankfull channel depth (m) Mean discharge category Mean annual discharge (m3/s) Average channel gradient category Average channel gradient Average unit stream power (W/m2) Project background Edit project background Reach length directly affected (m) Project started Works started Works completed Project completed Total cost category Total cost (k€) Benefit to cost ratio Funding sources Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Stakeholder engagement and communication Works and works supervision Post-project management and maintenance Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Hydromorphology Biology Physico-chemical Coal mine water pollution Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Reedbed creation, Creation of two infiltration lagoons Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Other Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Physico-chemical quality elements Edit Physico-chemical quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Any other monitoring, e.g. social, economic Edit Other responses Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Monitoring documents Upload monitoring documents Additional documents and videos Upload additional documents Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information